Pop & Hiss
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2. Statue of Liberty, N.Y., N.J.

Perhaps the most recognized symbol of freedom and democracy in the world, it is no surprise that the Statue of Liberty is one of the most visited monuments in the nation. In July 2009, visitors were again permitted to visit the statue's crown, closed to the public since Sept. 11. Reserve tickets online for all visits, and be prepared for long ferry lines and large crowds. Visitors in 2009: 3.83 million More info: http://www.nps.gov/STL National Park Service